Answer / rsundareee

The Busbar shall be 3P+N+E =2R x 150mm x 10mm each R,Y,B,N
and Earth Busbar shall be 1R x 150mm x 10 mm.and 85kA for
breaking capacity of the Bus bar.

Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2 Answers  

---

What is the latest generation of circuit breakers called?

3 Answers   Epitome, Focus Energy, Jakson, KDC, L&T,

---

Is LV shorted in magnettic balance test?If yes why?

2 Answers   Hindalco,

---

Name the instruments which run on DC?

2 Answers  

---

Why 50hz and 60hz frequencies are used by the world, why they are not taking 55hz?

3 Answers  

---

Why we use Fuse in transformer in secondary side.Why we dont use fuse in primary side?

1 Answers   Care,

---

Which are Electrical componet and Electronics componet??

2 Answers   KarMic,

---

what is laser diodes?

0 Answers  

---

Transformer's core is made up of which material and why so?

10 Answers   ABB, NTPC,

---

Before given the connection to Alternator (pre- commissioning) which tests we will conduct

1 Answers  

---

what is the difference between old fan regulator and new fan regulator

1 Answers  

---

Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

0 Answers  

---